MELISSA - The last day of July marked the end of an era in Melissa. Longtime local postman David Betterton retired July 31 after 36 years on the job. For nearly half of that time, he was the only mail carrier in the city. "I've enjoyed the customers. I've seen a lot of them come and go," he said. "I was 19, 20 years old when I started. Now, I'm 56." Betterton grew up in McKinney. The mail carrier who delivered to his home first suggested that he get into the business. With some help from her, he took the civil servant exam and earned a job as an RCR (rural carrier relief) in his hometown...
